The Team

Helison Marketing is managed by:


Kostas Rallis
Managing Director
Degree in Chemistry &
Post Graduate in Marketing

- more than 20 years experience in the gas industry, whereas 8 years in Linde Group  (former BOC)
- held various international managing positions (Asia & Africa) in different areas of activity (Operations, Marketing, Sales , Business Development, General Management...)
- specializing in new Market Entry





Rachid Boularas
Deputy Managing Director

- engineer diploma in automation from  Hydrocarbons and Chemistry National Institute (Algeria)

- more than 22 years experience within Sonatrach, including 15 years in marketing activity

-held various position in various activities in the Petroleum Refining, transportation and marketing of hydrocarbons (Engineering, Operation and Sales)





Radouan Bouzbiba
Head of Finance, Accounting and Administration

Masterís degree in Statistics,
Neuch‚tel/Lausanne HEC with thesis in Risk Management.





Marc-David Vessaz
Coordinator Supply Chain and customer services

-more than 15 years of experience in project management

- international certificate in project management (IPMA)








Ksenia Dayen
Coordinator Supply Chain and customer services


20 years of experience in customer management and export.









Helison Marketing Ltd - Succursale d'Ecublens VD - Route du Bois 14 - CH-1024 Ecublens
Tel:     021 697 09 01 - Fax:    021 697 09 05 -